-57=-7(x-3)-1

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Solution for -57=-7(x-3)-1 equation:


Simplifying
-57 = -7(x + -3) + -1

Reorder the terms:
-57 = -7(-3 + x) + -1
-57 = (-3 * -7 + x * -7) + -1
-57 = (21 + -7x) + -1

Reorder the terms:
-57 = 21 + -1 + -7x

Combine like terms: 21 + -1 = 20
-57 = 20 + -7x

Solving
-57 = 20 + -7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7x' to each side of the equation.
-57 + 7x = 20 + -7x + 7x

Combine like terms: -7x + 7x = 0
-57 + 7x = 20 + 0
-57 + 7x = 20

Add '57' to each side of the equation.
-57 + 57 + 7x = 20 + 57

Combine like terms: -57 + 57 = 0
0 + 7x = 20 + 57
7x = 20 + 57

Combine like terms: 20 + 57 = 77
7x = 77

Divide each side by '7'.
x = 11

Simplifying
x = 11

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